Improvement in striking apparatus for bells, gongs



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N0.`126,992 fglnfed May 2111815,

I l l l I l 'A l@ 'l A M Pw Tm mma/14PM' m Mx asm/w55 PRDCESSJ UNITEDSTATES PATENT OFFICE.

COLLINS STEVENS AND GEORGE M. STEVENS, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN STRIKING APPARATUS FOR BELLS, GONGS, &c.

Specification forming part of Letters Patent No. 126,992, dated May 21,1872.

,To all whom it may concern:

and State of Massachusetts, have-invented a certain new and usefulStriker for Bells, Gongs, &c., of which the following isa specication:

The nature of our invention consists in the peculiar construction of theactuating and letoff mechanism for astriker forbells, gon gs, &c., to beused for signal, alarm, or call bells, which may be best understood byreference to the dra-wing and specification; the object being to make adevice that shall be. simple in its construction and certa-in in itsoperation, and that may be set in motion, when wound up, by the exertionof a very slight force.

Description of thc Accompanying Drawing.

Figure lis an elevation and vertical section ot' our invention. Fig. 2is a plan of the same.

General Description.

A represents a disk-wheel, having pins B B and D D extending from itsface, and located as shown. H K is a hammer, suspended so as -to swingfreely about the center of the hub E.

d d is a small disk, represented in Fig. 1 as broken away to show theother parts, attached to the hammer-shank H, and having a notch betweenapa, in which the pin c of the swinging bar O plays. F and F areprojections extending from the hub E, and are acted upon by the pins B Band D D. L is an arm extending from the hub E, and is bent at T, asshown in Fig. 2, the bent part resting upon the upper part N of thelatch M, Fig. l. This latch M is so hung as to swing freely outward.

When, from any cause, the latch M is moved outwardly, the part T of thearm L will pass down between N and P, thus allowing the arm L to fall,and the hammer K take the position indicated by the dotted lines inFig. 1. The bar O is pivoted at b, and has a start, h, projecting towardthe disk A, so placed in relation to the pins B B, Sto., that it willstrike one of them, and thus hold the disk from revolving when thehammer is upright, as shown in Fig. l; but when the hammerl falls backthe shoulder d will throw up the bar O, remove the start h from the pinB', and leave the disk A free to revolve untilthe pin B comes in contactwith the shoulder d, and, forcing it back, causes the hammer to strike;then one of the pins D comes in contact with the shoulder F and throwsthe lever onto catch M. As the hammer assumes the upright position theshoulder cl of the hub passes the bar O back into position. so that thestart h locks another of the pins B and stops the disk from revolving.By again allowing the arm L to drop, the above-described motions arerepeated. S represents the winding-barrel, arranged with ratchet, pawl,&c., as usual.

rEhe latch M may be operated by a magnet, or by a cord or wire.

It' desirable to have the bell at a distance from the actuating` device,a rod may be attached to the arm L and extended to any rea sonabledistance.

From the above description it will be seen that all the power requiredto strike the Vblow is furnished by the Weight or spring that drives thedisk A; and that the person who wishes to cause the bell to strike hasonly to exert suflicient force to move the latch M, and as often as thatlatch is moved the bell will strike.

We claim as our invention- 1. The combination of the disk A, having tworows of pins or projections, B B, &c., and D D, 85e., operating inconnection with the projections F F on the-hammer-hub E, substantiallyas described, and for the purpose set forth.

2. The combination of the disk A, having a row of pins,B B, &c., withthe bar O c, pin h, the projections d d on the ham mer-hub E, and leverL, operating substantially as descrlbed,

and for the purpose set forth.

COLLINS STEVENS. 4GEORGE M. STEVENS.

Witnesses: Y

WILLIAM EnsoN, FRANK G. PARKER.

